Merge table with INDEX statements out of order returns NULL for index columns ?
Tables which already have their indexes showing NULL values for there old indexes after merging the tables.
I am performing the MERGE operation for few tables which already contain there indexes for fast processing of data. But after I executed the MERGE statement when I tried to retrieve the older indexes it is giving NULL value.
As a result all my precious INDEX values are lost which are very important.
How can I get those data back? Please help me out.


